Finding the Fourth Proportional to 50,077.89, 69,107.46 and 28,869.45

Step by Step Solution

1. Step 1: Write the proportion equation
   50,077.89 : 69,107.46 = 28,869.45 : x
2. Step 2: Convert to fraction form
   50,077.89/69,107.46 = 28,869.45/x
3. Step 3: Cross multiply
   50,077.89x = 69,107.46 × 28,869.45
4. Step 4: Simplify right side
   50,077.89x = 1,995,094,361.10
5. Step 5: Solve for x
   x = 1,995,094,361.10/50,077.89
6. Step 6: Final answer
   x = 39,839.82